My Ghost Boyfriend Won't Let Me GraduateEpisode 4

Synopsis

The system tells Yara that as long as she wins over Liam, she can go home. But nobody tells her Liam isn't human. And nobody ever makes it to graduation at this academy. When the truth of a sacrifice from a hundred years ago surfaces, she has to choose. Erase her memories and return to the real world. Or stay by the malevolent ghost's side forever.